Overhead transformation for fords



Nov. 17, 1925.

R. M. RooF ovmmm TRANSFORMATION fon Fonos I Original Filed Sept.' 2.1924 Patented Nov. 17, 1925.

UNITED STATES PATENT OFFICE.

ROBERT M. noon, or ANDERSON, INDIANA.

OVERHEAD TRANSFORMATION Fon ronDs.

` Application leli` September 2, 1192-1, Serial No. 735,456. RenewedJuly 27, 1925.

To all whom t may concer/rt:

`Be it known that I. ROBERT M. Roon, a

citizen of the United States. and aresident of Anderson, county ofMadison, and State ofIndiana, haveinvented a certain newand usefulOverhead Transformation for Fords; andI do hereby declare that thefollowing is a full, clear, and exactdescription thereof,*referencebeing had to the accompanying 1 drawings. in whichlilie numerals referto like parts.

This invention relates to a Ford transformation, that is, an internalcombustion engine of the L type which is transformed by an overhead camshaft. y

"The chief object of the invention is to construct the several parts "ofa motor of the general character indicated?, whereby said 5 into anoverhead valve type motorloperable 5 parts are `readilyattachable to anengine commonly called the Ford, fortransforming the salme'into ahighspeed engine. `Such `an engine usually requires a pressurelubricating systemand .a positive circulation coolingsysteml Thechieffeatures ofthe invention, therefore,"consist in `the accomplishment `ofthe foregoingobject, bythe provision of parts for ready attachment tothe Ford engine whereby said engine is transformed into a high speedenginehaving a pressure lubrieating system and apositive circulationcooling system and includes overhead camshaft neans for directlyoperating overhead valves. `Another feature ofthe invention consists inthe association of the'` several meansfor driving the overhead camyshaft means by the usual cam shaft of the Ford engine.

The full nature ofthe invention will be understood, from theaccompanying drawings and the. following description and claims:

In the drawings, Fig. 1 is a side elevational view of the front portion`of aFord engine equipped with the invention and with several of thepartsthereof shown in section to show otherparts in detail. 'Figi 2 isafront elevational view of thel same. ',Fig. 3 isan enlarged transversesectional view taken substantially inthe plane of lineB-. on

Fig. ljand.intheadirection `of the arrows.

Fig. 4`is an enlarged central sectionalyiew of a modified form of oneportion ofthe invention. f i

In the drawings there is illustrated the invention as applied to a Fordmotor. This invention includes a `plurality of attachments for thepresent `Ford motor or a motor of the general character described. Sucha motor consists of a cylinder block l() provided with an L typeydetachable head, and herein said head is shown replaced by a headprovided with overhead valves having the stems 12 that extend upwardlytherefrom and said stems support a spring retainer 13 which retains acoiled spring 14 concentric with the valve stem for normally`maintaining the valve in the closed position. The valve stem 12 abuts atappet cup 15 which is slidably, and if desired,non rotatably mounted ina supporting plate or base 16. Positionedabove said base and rotatablysupportedin hearings supported by said base is a pair `of cam shafts 17inclu-ding the meshing gears 18. Positioned forwardly of the forwardbearing upon one of the shafts-17 is a sprocket pinion 19suitablysecured to said shaft for rotating the same and thereby rotating bothshafts.` The shafts l'ncarry suitable cams 2O for actuating the tappetcups 15, thereby opening the valves carried by the stems 12. Theforegoing lconstruction is disclosedin the co- `pending Patent No.1,509,611, dated September 23,1924.` A cover 21 encloses all of theforegoingcam and `valve construction. Said cover 21 must be removed toremove `the head from the blockf `Suitably` secured to the cover andcommunicating with the cam shaft chamber formed thereby and atone end isatubular housing herein shownformed of two complementary portions orchannels 22 secured together as indicated at23. `Said housing terminatesin a flange 24 which in turnis `secured to a complementary flange 25formed upon a casing 26 in turn suitably secured to which is theoriginal Ford cani shaft. The

n housing 22 includes an enlargement 30, and

positioned in said enlargement is a finger 31 pivotally supported at 32.Adjustably supported in said enlargement is a pressure member 33 in theform of a bolt secured in adjusted position by the lock nut 34.ljressure of the tautening device 31 upon the chain 28 removes the slackand Whip from said chain. It Will be readily apparent from the foregoingthat the overhead v`cam shafts 17 are driven in timed relation With thecrank shaft 35, since the crank shaft through the usual Fordconstruction drives the original cam shaft of the Ford, which 'drivesthe pinion 29. ln Fig. 4there is illustrated a modified form of theyinvention. In'this form of the invention the vg'rea-rsfli are omittedand a sin'- gle cam shaft 4117 having the ca-ms` 120- actu.- ate the`tappet cups 115 for opening the valves carried by the stems 112. rlheshaft 117 vcarries the extensionv shaft 118 v`vhich includes thesprocket teeth 1-1-9.v 'In Figs. 1 and 2 the invention is disclosed as'of-the four valves tothe cylinderV type, whereas the modification inFig.. 4T discloses two Valves to the cylinder type. Either type' ofvalve construction may be utilized as des'ired.

As shown at the bottom of'Fig. 1 the usual tim-ing gearV 40 is actuableby'a shaft'41, and this is extended and threaded as at 42.` The threadedextensionv 'supports ,aV sleeve-like shaft 43, the pin 44 locking thesame to.n gether, `and saidsleeve-like l-shaft'43 carries 'the pinionteeth 29 for driving theA chain. The extension 42 is further extended at43 and includes a tongue and groove arrange.- ment 46; A shaft 47 has asimilarl arrangement, and projects forwardly through la gland 48 into agear housing 49. The foregoing constitutes an outboard bearing forthelarge timer gear shaft extension. The gear housing 49 includes twochannels 50 `upon opposite'sides and is adapted to support two gears. Acover `51 is associatedwtherewith and with two meshingl gears completesthe .oil'pump construct-ion for insuring la pressure lubricating system.Thisipumprequires no 'special alignment.

Positioned at one sidel of the cylinder block and communicatingtherewith.y and upon the bracket is a centrifugalxtype Water pump 61-,operable by shaft means indi.-

cated generally Lby the numeral 62 which wafer pump .construction `anddrive therefor may be omitted if desired, and also that the oil pump andshaft connection may be omitted if desired, or both may be omitted, andthe result Will be a transformed overhead valve, overhead cam shaft typeof Ford engine. However the additionpf .the Water pump and the oil pump'permit'soperation of the transformation at a much higher speed thannormal which results in a more powerful engine of thefsa'me volumetricdisplacement.

The invention Vclaimed is:

l. In an. internal .combustion 1engine transformation, the combinationof a` Ford cylinder block having a crank case and a cam shaft therein, adetachable Fordv head` replacing .oVer-head valve type 'head posi:-.tioned thereabove, an. overhead camshaft, a.

chamber forming overhead. cam shaft en- 1 closing cover therefordetachably positioned above said head', a tubular housing communicatingat its upper .end l With said chamber andat its lower end with the crankcase,- 'and a. power connection` insaid tubular i housing and operableby a shaft mounted in vthe original cam shaft bearingl for'.driving lthe.over-headbam shaft in timedv relation with the-engine 2. In an internalcombustion engine trans,- l 1 and oper-able thereby, a detachable pump Yladapted to be included in the cool-ing sy,- temof said engine .andincluded in the :timer shaft connection andl -operable thereby, and .agear pump detachably supported by said base bracket and also included.in thetimer r shaft connection .and operable 'thereby' for providing apressure lubricating-supply.

3. In a transformation for Ford engines, the combination of ithe,original timing gear shaft .ofsaid kengine a sleeve` shaft .detachablysecured ithereto and ,operable thereby, a .power connection operable by`said ysleeve shaft for operating the valves of said engine, anothershaft concentrically positioned Within .said -sleeve shaft-and havingadetachable connection with the/original timinggearshaft, `and .power`operable meansoperable by said concentric shaft. f r

4. In .atransformation for F ord engines,

the combination of a .replacing overhead .i

valve`-type head, the .original timing gear shaft. bea-ring, and anyextended `shaft imounted 'in said bearing .and including: Fdrivingteeth-A on the eextension for Ydriving ttheoverhead. .valveslof saidhead.

,5. yIn .af transfonmation for Ford engines, 'the combination of a.replacing .overhead valve-type head, .the Yoriginal timing gear shaftbearing, .an extended shaft mounted -n said bearing andincluding drivingteeth on the kextension for driyingthe ,over-head valvee of said head,and another' and outboard bearing for the extended end of Said shaft.

6. In a 'transformation for Ford engines, the combination of a replacingdetachable overhead valve-type head having overhead valves and anoverhead earn shaft, cover means therefor and detachably mounted, the

removal of said head requiring previous removal of the cover means, anextended shaft 10 adjacent the crankshaft, and an enclosed drive for theoverhead cam shaft operable by said extended shaft.

In Witness whereof, I have hereunto affixed my signature.

ROBERT M. ROOF.

